ASTROSAT CZTI

Data Quality Report

Orbit 58080

Creation date: 2026-06-23T03:15:41.785466
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A14_031T01_9000006584_58080cztM0_level2.fits modeM0/AS1A14_031T01_9000006584_58080cztM0_level2_quad_clean.evt
Size (bytes)565,329,60097,277,760
Size539.1 MB 92.8 MB
Events in quadrant A3,157,699664,116
Events in quadrant B7,453,597604,755
Events in quadrant C3,113,767631,397
Events in quadrant D6,663,645562,091

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146221
B0269251
C0145431
D0244331

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6935610.879596%
B6935126118.183129%
C6935240.346071%
D69365497.915225%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7180 6937 20 20 0.28% 0.29%
B 7180 6937 1014 1014 14.12% 14.62%
C 7180 6937 13 13 0.18% 0.19%
D 7181 6937 946 946 13.17% 13.64%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 251 166199 875.49 762 741 189.0
A 3 245 12742 63.5 762 741 189.0
A 13 254 10683 52.61 762 741 189.0
B 10 128 3997432 25862.99 713 687 154.5
B 4 171 254342 1641.4 713 687 154.5
B 4 201 155695 1003.06 713 687 154.5
C 12 252 113283 562.35 731 725 200.2
C 6 223 75833 375.25 731 725 200.2
C 11 244 23478 113.68 731 725 200.2
D 12 110 2908583 14242.28 716 681 204.2
D 8 160 288644 1410.38 716 681 204.2
D 12 1 166172 810.54 716 681 204.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter